So... whatever a bed was, you laid upon it, and it was warm, and it was marvelous and beautiful. Nora'Luuu thought of all the wonderful, warm, marvelous things he laid in at night, and came to only one conclusion: Compost.
That warm, maybe even HOT, pile of rotting stuff where he kept all the parts of the animals he didn't eat. That earthen smell, and it even helped with hunting! Civilization just got a few marks better if EVERYONE had those.